PLearn 0.1
ConditionalDistribution.cc
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00001 
00002 
00003 // -*- C++ -*-
00004 
00005 // ConditionalDistribution.cc
00006 // 
00007 // Copyright (C) *YEAR* *AUTHOR(S)* 
00008 // ...
00009 // Copyright (C) *YEAR* *AUTHOR(S)* 
00010 // 
00011 // Redistribution and use in source and binary forms, with or without
00012 // modification, are permitted provided that the following conditions are met:
00013 // 
00014 //  1. Redistributions of source code must retain the above copyright
00015 //     notice, this list of conditions and the following disclaimer.
00016 // 
00017 //  2. Redistributions in binary form must reproduce the above copyright
00018 //     notice, this list of conditions and the following disclaimer in the
00019 //     documentation and/or other materials provided with the distribution.
00020 // 
00021 //  3. The name of the authors may not be used to endorse or promote
00022 //     products derived from this software without specific prior written
00023 //     permission.
00024 // 
00025 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
00026 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00027 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
00028 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00029 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
00030 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00031 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00032 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00033 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00034 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00035 // 
00036 // This file is part of the PLearn library. For more information on the PLearn
00037 // library, go to the PLearn Web site at www.plearn.org
00038 
00039 #include "ConditionalDistribution.h"
00040 
00041 namespace PLearn {
00042 using namespace std;
00043 
00044 ConditionalDistribution::ConditionalDistribution() 
00045     :inherited()
00046 {
00047    
00048 }
00049 
00050 
00051 PLEARN_IMPLEMENT_OBJECT(ConditionalDistribution, "ONE LINE DESCR", 
00052                         "You must call setInput to set the condition before using the distribution");
00053 
00054 
00055 void ConditionalDistribution::makeDeepCopyFromShallowCopy(CopiesMap& copies)
00056 {
00057     inherited::makeDeepCopyFromShallowCopy(copies);
00058 }
00059 
00060 
00061 void ConditionalDistribution::setInput(const Vec& input)
00062 { PLERROR("setInput must be implemented for this ConditionalDistribution"); }
00063 
00064 
00065 void ConditionalDistribution::use(const Vec& input, Vec& output)
00066 {
00067     Vec x = input.subVec(0,input_part_size);
00068     Vec y = input.subVec(input_part_size,input.length()-input_part_size);
00069     setInput(x);
00070     if (use_returns_what=="l")
00071         output[0]=log_density(y);
00072     else if (use_returns_what=="d")
00073         output[0]=density(y);
00074     else if (use_returns_what=="c")
00075         output[0]=cdf(y);
00076     else if (use_returns_what=="s")
00077         output[0]=survival_fn(y);
00078     else if (use_returns_what=="e")
00079         output << expectation();
00080     else if (use_returns_what=="v")
00081         output << variance().toVec();
00082 }
00083 
00084 } // end of namespace PLearn
00085 
00086 
00087 /*
00088   Local Variables:
00089   mode:c++
00090   c-basic-offset:4
00091   c-file-style:"stroustrup"
00092   c-file-offsets:((innamespace . 0)(inline-open . 0))
00093   indent-tabs-mode:nil
00094   fill-column:79
00095   End:
00096 */
00097 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :
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